1,2

Table of n, a(n) for n=1..73.

For n>=1, a(n)=floor((sqrt(3)-1)*(n+1))

(PARI) a(n)=floor((sqrt(3)-1)*(n+1))

Sequence in context: A210357 A057359 A076538 * A247784 A249243 A066530

Adjacent sequences: A138463 A138464 A138465 * A138467 A138468 A138469

nonn

Benoit Cloitre, May 09 2008

approved